Welding-torch burner



July '12, 1927. I

C. E. CHAPMAN WELDING TORCH BURNER Original Filed'Qct 16. 1923 2 Sheets-Sheet l Jrhentoc g? WW 1,635,606 July 1927' c. E. CHAPMAN I WELDING TORCH BUR ER Original Filed on. 16. 1925 2 sheets-$11666 2 m caw crate/26 0112016 inunicate with the bore 18 isa nipple 32 cooperating with the flange to define a socket 33 in which is disposed a packing v34 which is preferably formed of asbestos:

[Associated with the mixing chamber is a gas generating unit comprising parallel generating tubes 35 and connected near their forward ends by a cross tube, At its rear end, the tube 36 fits snugly in the socket 33 in the valve 'casin 17 to surround the 2'.

nipple 32 hearing against the packing 34 and formed on said tube is a flange 38 while the valve casing is provided at 1ts rear side with cars 39 through which are engaged 'clamplng rods 40 screwed through the flange 38 sothat, as will be seen, the rods may be adjusted "for drawing the tube into the Socket to con'ipress the packing and form a tight joint between the tube and casing. Formed on the forward ends of the tubes 35 and 36 are bonnets 41 while the tube 3? isprovided at one end with a similar bonnet 42, and screwed through said honnets are clamp screws 43, these bonnets and clamp screws being similar to the bonnet 28 and clamp screw 29. Secured by said screws over the ad acent ends of the tubes are clo sure plates 44 which are preferably 0on structed of copper, the screws being round ed at their inner ends, like the screw 29, for

pressing the plates slightly into the adjacent ends of the tubes to form sealed joints between the pla'tesand the tubes. Accordi *ingly, the tubes will be effectually sealed a while, by removing the screws 43 and plates 44, the tubes may be readily cleaned. Furthermore, by employing the bonnets and mounting the clamp screws upon-the bon nets, the inherent freezing trouble-as experienced with clean-out plugs, will be avoid ed. Formed on the tube 37 at its lower side is a depending plate 45 apertured to fit over the forward end of thennixing chamber 10,

"siipportingthe forward ends of the generating; tubes 35 and 36 with respect to said chamber, and formed on the lower end of i theplate is arearwardly directed priming pan 46 extending beneath the mixing chamberll) and valve chamber 19 in close prorr jiinity thereto. Atits forward end the pan fis provided with a depending lug 47 upon WlIIGhlS swingingly mounted a supporting leg 48 connected with the lug by a clamping bolt 49 and formed on the leg at its lower end, is, as shown in detail in Figure6, an arched foot 50. As suggested in dotted lines in Figure 1, the leg may be disposed ininactive position to extend horizontally beneath the pan 46 when by tightening the bolt 49, the leg will beheld in such position.

ttention is now directed to the fact that thegas' generating unit is freely detach able from the nammgcharnber 10 and valve casing 17. By removing'the clamping rods 40, the unit may be readily slipped torwardly and displaced. Consequently, the generating unit may be easily renewed at any time Should. enses. l WQiW P Thus, the hood will till hood at the corners thereof are outwardly inclined rests 53 for supporting a;l ettle,;'as conventionally illustrated in Ii gurel at 54. In Figure 1 of the drawings, I have shown the present burner in connection with a torch tank 55,.as set forth in my co-pending applicationfor said invention filed May 15, 1923, Serial N 0. 639,173. It. is, accordingly, unnecessary to go intothe detailset the tank herein, itibeing sufiicient to note that the tank is provided with an outlet pipe 56 through which liquid fuel lisidelivered under pressure. Connecting the generating tube 35 of the burnerwiththelpipe 56 1? the tank is a pipe 57 in which is interposed a swivel joint 58 sothat the burner may be swung horizontally, while asilnilarl swivel joint 59 is interposed in the pipe 56 so that the burner may be swung in a vertical plane. Thus, as will be seen,the burner maybe disposed over the tanker may be brought to the position shown, when fthe leg 48 may be swung downwardly for supporting the burner under the weightflotythe kettle 54.

Accordingly, the assembled burn'er and tank may be? readily employedassa rfire' pot well as a blow torch.

In operation, fuel ispouredl intothe 46 and lighted for heating the mixingchaniber 10 and valve casing 17 as well as the gencrating tubes 35, 36 and. 37;..il'lhe needle valve 23 is then opened to permita flow; of fuel through the generating. tubes-As the fuel progresses through these tubes, the fuel will, of course, be gasifieditoissue 1n va or the dra'ft tube" 26 of the mixing chamber.

Air will accordingly be drawnvin at the rear end of said tube so tbatuthe air and fuel vapors willpass through the tube to bec0mone form. through the valve opening 20. into mingled therein and issuednto the chamber 10 to be finally: mixed and thoroughly cominingled withinsaidwchamben From? the chamber .10, then-fuel mixture will, of course, rise-through the -openings or the burner of course, serve to heatthe generatingtub'es 35, 36 and 37 -to maintalnthewburner in foperation. In connection with the draftzytube 26, it is to be particularly:noted that'since plate 12 to be ignited, when the flamewill,"

' l0 Having thus described the inventionevvhat axcap closing-the chamber ;at one end. and" provided with a'spider having a ring there-;

. eiwunit including aplnixingichambefand .a; valve, rigidly connected with saidv chamber and controlling tlIGflOW of fuel theretogi' '25 this; tube is formed with thethroat .27 the her. into the tube when the flowof gas into the-draft tube isrireduced for reducing the flaineat the burner plate. .i

is claimed as neW is:

'11; A'burner including admixing iohan bei',

onin spaced, relation to the cap,adrafttube mounted upon the cap to. extend. Within said chamber-and having one end exposed to the atmosphere, and; a valve mounted upon said i ring'for injectingfuialirlto said tub-egi' 2." In a burner, ;the combination ofaburngas generating" unit includinga superheater tube having a depending'plate apertured to V receivethe forward end of said chamber and r f provided, with a priming: pan eXtendin'g and valve having sliding oonnection and clamping means binding the tube and valve together andfreel ,,releasab1e whereby the units may be "readi yr separated. I

a fuel valvei'eontrolling flow of'fuel into said chamberyand provided with a socket, a gas v 3. A burner includingamixing chambeig fg'eneratingtube fitting in said 's0cket, a"nippl fixed tofu-the valve t'op rojectvvithin said i i i 7 socket and'fitting in the adjacent end of said tube, a packing surrounding the nipple and forming a seat for the end oftheltube, and means coacting between thetube andvalve :form a, sealed connection bet the tube fandvalve i, h V

valve frigidly connected with said chamber and controlling theflo'wof fuel thereto, a

gas generating unit including a superheater clamping thetube and valve together, to

5o .tubehaving a depending plate apertured Ito receive? thef'for-Wardend' ofsaid chamber, thetube and valve having sliding comiection, .Iandfclamping means ,bindin'gjthe tube 55' 'and valve, together and freely releasable CHARLES. E; CHAPMAN.

whereby the units may be readily separated. Y L Intestirnony whereof I aflix my signature. rearwardly beneath'said ehambeg the tubefl v I h i 45 v 4. In a burner, the combination of a burnj er unit neludlng ainixlng chamber and a? 

